1 files changed, 79 insertions, 86 deletions

diff --git a/drivers/edac/e7xxx_edac.c b/drivers/edac/e7xxx_edac.c
index 9b59c661f45e..a9518d3e4be4 100644
--- a/drivers/edac/e7xxx_edac.c
+++ b/drivers/edac/e7xxx_edac.c
@@ -11,9 +11,9 @@
  *      http://www.anime.net/~goemon/linux-ecc/
  *
  * Contributors:
- *      Eric Biederman (Linux Networx)
- *      Tom Zimmerman (Linux Networx)
- *      Jim Garlick (Lawrence Livermore National Labs)
+ *      Eric Biederman (Linux Networx)
+ *      Tom Zimmerman (Linux Networx)
+ *      Jim Garlick (Lawrence Livermore National Labs)
  *      Dave Peterson (Lawrence Livermore National Labs)
  *      That One Guy (Some other place)
  *      Wang Zhenyu (intel.com)
@@ -22,7 +22,6 @@
  *
  */
 
-
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -31,14 +30,11 @@
 #include <linux/slab.h>
 #include "edac_mc.h"
 
-
 #define e7xxx_printk(level, fmt, arg...) \
-    edac_printk(level, "e7xxx", fmt, ##arg)
-
+        edac_printk(level, "e7xxx", fmt, ##arg)
 
 #define e7xxx_mc_printk(mci, level, fmt, arg...) \
-    edac_mc_chipset_printk(mci, level, "e7xxx", fmt, ##arg)
-
+        edac_mc_chipset_printk(mci, level, "e7xxx", fmt, ##arg)
 
 #ifndef PCI_DEVICE_ID_INTEL_7205_0
 #define PCI_DEVICE_ID_INTEL_7205_0      0x255d
@@ -72,11 +68,9 @@
 #define PCI_DEVICE_ID_INTEL_7505_1_ERR  0x2551
 #endif                          /* PCI_DEVICE_ID_INTEL_7505_1_ERR */
 
-
 #define E7XXX_NR_CSROWS         8       /* number of csrows */
 #define E7XXX_NR_DIMMS          8       /* FIXME - is this correct? */
 
-
 /* E7XXX register addresses - device 0 function 0 */
 #define E7XXX_DRB               0x60    /* DRAM row boundary register (8b) */
 #define E7XXX_DRA               0x70    /* DRAM row attribute register (8b) */
@@ -126,7 +120,6 @@ enum e7xxx_chips {
         E7205,
 };
 
-
 struct e7xxx_pvt {
         struct pci_dev *bridge_ck;
         u32 tolm;
@@ -135,13 +128,11 @@ struct e7xxx_pvt {
         const struct e7xxx_dev_info *dev_info;
 };
 
-
 struct e7xxx_dev_info {
         u16 err_dev;
         const char *ctl_name;
 };
 
-
 struct e7xxx_error_info {
         u8 dram_ferr;
         u8 dram_nerr;
@@ -152,20 +143,23 @@ struct e7xxx_error_info {
 
 static const struct e7xxx_dev_info e7xxx_devs[] = {
         [E7500] = {
-                   .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
-                   .ctl_name = "E7500"},
+                .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
+                .ctl_name = "E7500"
+        },
         [E7501] = {
-                   .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
-                   .ctl_name = "E7501"},
+                .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
+                .ctl_name = "E7501"
+        },
         [E7505] = {
-                   .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
-                   .ctl_name = "E7505"},
+                .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
+                .ctl_name = "E7505"
+        },
         [E7205] = {
-                   .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
-                   .ctl_name = "E7205"},
+                .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
+                .ctl_name = "E7205"
+        },
 };
 
-
 /* FIXME - is this valid for both SECDED and S4ECD4ED? */
 static inline int e7xxx_find_channel(u16 syndrome)
 {
@@ -173,16 +167,18 @@ static inline int e7xxx_find_channel(u16 syndrome)
 
         if ((syndrome & 0xff00) == 0)
                 return 0;
+
         if ((syndrome & 0x00ff) == 0)
                 return 1;
+
         if ((syndrome & 0xf000) == 0 || (syndrome & 0x0f00) == 0)
                 return 0;
+
         return 1;
 }
 
-
-static unsigned long
-ctl_page_to_phys(struct mem_ctl_info *mci, unsigned long page)
+static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
+                unsigned long page)
 {
         u32 remap;
         struct e7xxx_pvt *pvt = (struct e7xxx_pvt *) mci->pvt_info;
@@ -190,17 +186,20 @@ ctl_page_to_phys(struct mem_ctl_info *mci, unsigned long page)
         debugf3("%s()\n", __func__);
 
         if ((page < pvt->tolm) ||
-            ((page >= 0x100000) && (page < pvt->remapbase)))
+                        ((page >= 0x100000) && (page < pvt->remapbase)))
                 return page;
+
         remap = (page - pvt->tolm) + pvt->remapbase;
+
         if (remap < pvt->remaplimit)
                 return remap;
+
         e7xxx_printk(KERN_ERR, "Invalid page %lx - out of range\n", page);
         return pvt->tolm - 1;
 }
 
-
-static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
+static void process_ce(struct mem_ctl_info *mci,
+                struct e7xxx_error_info *info)
 {
         u32 error_1b, page;
         u16 syndrome;
@@ -208,52 +207,46 @@ static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
         int channel;
 
         debugf3("%s()\n", __func__);
-
         /* read the error address */
         error_1b = info->dram_celog_add;
         /* FIXME - should use PAGE_SHIFT */
-        page = error_1b >> 6;   /* convert the address to 4k page */
+        page = error_1b >> 6;  /* convert the address to 4k page */
         /* read the syndrome */
         syndrome = info->dram_celog_syndrome;
         /* FIXME - check for -1 */
         row = edac_mc_find_csrow_by_page(mci, page);
         /* convert syndrome to channel */
         channel = e7xxx_find_channel(syndrome);
-        edac_mc_handle_ce(mci, page, 0, syndrome, row, channel,
-                               "e7xxx CE");
+        edac_mc_handle_ce(mci, page, 0, syndrome, row, channel, "e7xxx CE");
 }
 
-
 static void process_ce_no_info(struct mem_ctl_info *mci)
 {
         debugf3("%s()\n", __func__);
         edac_mc_handle_ce_no_info(mci, "e7xxx CE log register overflow");
 }
 
-
-static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
+static void process_ue(struct mem_ctl_info *mci,
+                struct e7xxx_error_info *info)
 {
         u32 error_2b, block_page;
         int row;
 
         debugf3("%s()\n", __func__);
-
         /* read the error address */
         error_2b = info->dram_uelog_add;
         /* FIXME - should use PAGE_SHIFT */
-        block_page = error_2b >> 6;     /* convert to 4k address */
+        block_page = error_2b >> 6;  /* convert to 4k address */
         row = edac_mc_find_csrow_by_page(mci, block_page);
         edac_mc_handle_ue(mci, block_page, 0, row, "e7xxx UE");
 }
 
-
 static void process_ue_no_info(struct mem_ctl_info *mci)
 {
         debugf3("%s()\n", __func__);
         edac_mc_handle_ue_no_info(mci, "e7xxx UE log register overflow");
 }
 
-
 static void e7xxx_get_error_info (struct mem_ctl_info *mci,
                 struct e7xxx_error_info *info)
 {
@@ -261,31 +254,29 @@ static void e7xxx_get_error_info (struct mem_ctl_info *mci,
 
         pvt = (struct e7xxx_pvt *) mci->pvt_info;
         pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR,
-            &info->dram_ferr);
+                        &info->dram_ferr);
         pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR,
-            &info->dram_nerr);
+                        &info->dram_nerr);
 
         if ((info->dram_ferr & 1) || (info->dram_nerr & 1)) {
                 pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_CELOG_ADD,
-                    &info->dram_celog_add);
+                                &info->dram_celog_add);
                 pci_read_config_word(pvt->bridge_ck,
-                    E7XXX_DRAM_CELOG_SYNDROME, &info->dram_celog_syndrome);
+                                E7XXX_DRAM_CELOG_SYNDROME,
+                                &info->dram_celog_syndrome);
         }
 
         if ((info->dram_ferr & 2) || (info->dram_nerr & 2))
                 pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_UELOG_ADD,
-                    &info->dram_uelog_add);
+                                &info->dram_uelog_add);
 
         if (info->dram_ferr & 3)
-                pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_FERR, 0x03,
-                    0x03);
+                pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_FERR, 0x03, 0x03);
 
         if (info->dram_nerr & 3)
-                pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03,
-                    0x03);
+                pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03, 0x03);
 }
 
-
 static int e7xxx_process_error_info (struct mem_ctl_info *mci,
                 struct e7xxx_error_info *info, int handle_errors)
 {
@@ -333,7 +324,6 @@ static int e7xxx_process_error_info (struct mem_ctl_info *mci,
         return error_found;
 }
 
-
 static void e7xxx_check(struct mem_ctl_info *mci)
 {
         struct e7xxx_error_info info;
@@ -343,7 +333,6 @@ static void e7xxx_check(struct mem_ctl_info *mci)
         e7xxx_process_error_info(mci, &info, 1);
 }
 
-
 static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
 {
         int rc = -ENODEV;
@@ -363,13 +352,14 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
 
         /* need to find out the number of channels */
         pci_read_config_dword(pdev, E7XXX_DRC, &drc);
+
         /* only e7501 can be single channel */
         if (dev_idx == E7501) {
                 drc_chan = ((drc >> 22) & 0x1);
                 drc_drbg = (drc >> 18) & 0x3;
         }
-        drc_ddim = (drc >> 20) & 0x3;
 
+        drc_ddim = (drc >> 20) & 0x3;
         mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1);
 
         if (mci == NULL) {
@@ -378,10 +368,9 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
         }
 
         debugf3("%s(): init mci\n", __func__);
-
         mci->mtype_cap = MEM_FLAG_RDDR;
-        mci->edac_ctl_cap =
-            EDAC_FLAG_NONE | EDAC_FLAG_SECDED | EDAC_FLAG_S4ECD4ED;
+        mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED |
+                        EDAC_FLAG_S4ECD4ED;
         /* FIXME - what if different memory types are in different csrows? */
         mci->mod_name = EDAC_MOD_STR;
         mci->mod_ver = "$Revision: 1.5.2.9 $";
@@ -391,19 +380,18 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
         pvt = (struct e7xxx_pvt *) mci->pvt_info;
         pvt->dev_info = &e7xxx_devs[dev_idx];
         pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL,
-                                         pvt->dev_info->err_dev,
-                                         pvt->bridge_ck);
+                                        pvt->dev_info->err_dev,
+                                        pvt->bridge_ck);
+
         if (!pvt->bridge_ck) {
                 e7xxx_printk(KERN_ERR, "error reporting device not found:"
-                             "vendor %x device 0x%x (broken BIOS?)\n",
-                             PCI_VENDOR_ID_INTEL,
-                             e7xxx_devs[dev_idx].err_dev);
+                        "vendor %x device 0x%x (broken BIOS?)\n",
+                        PCI_VENDOR_ID_INTEL, e7xxx_devs[dev_idx].err_dev);
                 goto fail;
         }
 
         debugf3("%s(): more mci init\n", __func__);
         mci->ctl_name = pvt->dev_info->ctl_name;
-
         mci->edac_check = e7xxx_check;
         mci->ctl_page_to_phys = ctl_page_to_phys;
 
@@ -428,15 +416,16 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
                 cumul_size = value << (25 + drc_drbg - PAGE_SHIFT);
                 debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
                         cumul_size);
+
                 if (cumul_size == last_cumul_size)
-                        continue;       /* not populated */
+                        continue;  /* not populated */
 
                 csrow->first_page = last_cumul_size;
                 csrow->last_page = cumul_size - 1;
                 csrow->nr_pages = cumul_size - last_cumul_size;
                 last_cumul_size = cumul_size;
-                csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */
-                csrow->mtype = MEM_RDDR;        /* only one type supported */
+                csrow->grain = 1 << 12;  /* 4KiB - resolution of CELOG */
+                csrow->mtype = MEM_RDDR;  /* only one type supported */
                 csrow->dtype = mem_dev ? DEV_X4 : DEV_X8;
 
                 /*
@@ -466,8 +455,8 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
         pci_read_config_word(mci->pdev, E7XXX_REMAPLIMIT, &pci_data);
         pvt->remaplimit = ((u32) pci_data) << 14;
         e7xxx_printk(KERN_INFO,
-                     "tolm = %x, remapbase = %x, remaplimit = %x\n",
-                     pvt->tolm, pvt->remapbase, pvt->remaplimit);
+                "tolm = %x, remapbase = %x, remaplimit = %x\n", pvt->tolm,
+                pvt->remapbase, pvt->remaplimit);
 
         /* clear any pending errors, or initial state bits */
         e7xxx_get_error_info(mci, &discard);
@@ -492,17 +481,16 @@ fail:
 }
 
 /* returns count (>= 0), or negative on error */
-static int __devinit
-e7xxx_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int __devinit e7xxx_init_one(struct pci_dev *pdev,
+                const struct pci_device_id *ent)
 {
         debugf0("%s()\n", __func__);
 
         /* wake up and enable device */
         return pci_enable_device(pdev) ?
-            -EIO : e7xxx_probe1(pdev, ent->driver_data);
+                -EIO : e7xxx_probe1(pdev, ent->driver_data);
 }
 
-
 static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
 {
         struct mem_ctl_info *mci;
@@ -518,22 +506,30 @@ static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
         edac_mc_free(mci);
 }
 
-
 static const struct pci_device_id e7xxx_pci_tbl[] __devinitdata = {
-        {PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-         E7205},
-        {PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-         E7500},
-        {PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-         E7501},
-        {PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-         E7505},
-        {0,}                    /* 0 terminated list. */
+        {
+                PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+                E7205
+        },
+        {
+                PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+                E7500
+        },
+        {
+                PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+                E7501
+        },
+        {
+                PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+                E7505
+        },
+        {
+                0,
+        }       /* 0 terminated list. */
 };
 
 MODULE_DEVICE_TABLE(pci, e7xxx_pci_tbl);
 
-
 static struct pci_driver e7xxx_driver = {
         .name = EDAC_MOD_STR,
         .probe = e7xxx_init_one,
@@ -541,13 +537,11 @@ static struct pci_driver e7xxx_driver = {
         .id_table = e7xxx_pci_tbl,
 };
 
-
 static int __init e7xxx_init(void)
 {
         return pci_register_driver(&e7xxx_driver);
 }
 
-
 static void __exit e7xxx_exit(void)
 {
         pci_unregister_driver(&e7xxx_driver);
@@ -556,8 +550,7 @@ static void __exit e7xxx_exit(void)
 module_init(e7xxx_init);
 module_exit(e7xxx_exit);
 
-
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n"
-              "Based on.work by Dan Hollis et al");
+        "Based on.work by Dan Hollis et al");
 MODULE_DESCRIPTION("MC support for Intel e7xxx memory controllers");